JP2000332970A - Facsimile machine - Google Patents

Abstract

(57) [Summary] [Problem] When the usable memory capacity is small and the number of two-sided originals to be sent is large, when reading the front side of the two-sided original, the memory does not overflow and the two-sided original can be sent. An object of the present invention is to provide a facsimile machine. When the available memory capacity estimated in advance becomes less than or equal to a predetermined capacity during reading of the front side document, the reading of the front side document is interrupted, and the back side of the previously read document is read and encoded. While storing it in memory and after reading, it will be facsimile sent to the intended destination,
In the same manner as described above, the remaining document is read and the like, and the control when reading is interrupted for the front document and the control when reading is not interrupted for the front document are changed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a facsimile machine,
In particular, the present invention relates to a facsimile apparatus capable of reading and sending a two-sided original.

[0002]

2. Description of the Related Art A conventional facsimile apparatus capable of reading and sending a double-sided document can read only one side of document information, and a user first sets the surface of the document, reads, encodes, and stores it in a memory. Then, the back side of the document is set, read, encoded, stored in the memory, and the facsimile apparatus transmits the front side from the first page, transmits the back side from the last page, and alternately transmits the front side and the back side. It is a facsimile machine.

[0003]

However, in the conventional example, when the available memory capacity is small and the number of double-sided originals to be sent is large, the memory overflows when reading the front side of the double-sided original, and the double-sided original is not read. There is a problem that sending becomes impossible.

Further, in a system in which the front side is read, and then the back side is read and the order is changed in the memory and the front side and the back side are transmitted in the order of the pages, the page order becomes out of order when one or more sheets are double-fed when reading the original. There is a problem.

Further, in a conventional facsimile apparatus, only one of the surfaces can be read. First, the information on the front surface is read, encoded and stored in a memory. In the type where the transmission order is controlled in the memory and the page is transmitted in order from the front and back of the first page, the transmission is performed in the memory in a different order, so the device can be realized at low cost, and both sides can be read and transmitted. ,
Very easy to use for users.

Further, when the front side of a two-sided original is read, alternate reception is performed and the available memory capacity is reduced. When the front side information is read, the available memory capacity is lost, and the back side information can be read. In addition, there is a problem that the transmission of the two-sided document cannot be performed.

Further, in the conventional example, for example, when the number of double-sided originals is large and the remaining memory for storing read information is small, the front side of the double-sided original is read, encoded, and stored in the memory. In some cases, the amount may run out. In this case, there is a problem that the two-sided original cannot be transmitted.

[0008]

SUMMARY OF THE INVENTION According to the present invention, there is provided a facsimile apparatus capable of reading and transmitting double-sided originals, reading, encoding and storing information on a front side, and then reading and encoding information on a rear side, The information on the front side is stored in the memory, the information on the back side is alternately transmitted from the first page, and the information on the back side is transmitted from the last page.At the start of reading the front side, the available memory capacity is estimated. When the estimated available memory capacity becomes equal to or less than a predetermined capacity, the reading of the front side document is interrupted, the information on the back side of the previously read document is read, encoded, stored in the memory, and after the reading is completed. , Make a call to the intended destination, execute facsimile communication on the front and back sides in page order, while reading and encoding the front side information for the remaining originals, Control when reading the back side information of the remaining originals, encoding and storing the information in the memory, and interrupting the reading of the front side original, and interrupting the reading of the front side original. This is a facsimile machine characterized by changing the control when there is no facsimile.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing a facsimile apparatus FS1 according to one embodiment of the present invention.

An NCU (network control unit) 2 connects to a terminal of the line to use the telephone network for data communication and the like.
It controls connection of the telephone exchange network, switches to a data communication path, and holds a loop. The NCU 2 connects the telephone line 2a to the telephone when the signal level (signal line 20a) from the control circuit 20 is "0", and connects the telephone line 2a to the facsimile apparatus when the signal level is "1". Side. In a normal state, the signal line 2a is connected to the telephone 4 side.

The hybrid circuit 6 separates the transmission system signal and the reception system signal, sends the transmission signal from the addition circuit 12 to the telephone line 2a via the NCU 2, and receives the signal from the other party via the NCU 2. , To the modem 8 via the signal line 6a.

The modem 8 is based on ITU-T Recommendation V. 8,
V. 21, V.I. 27ter, V.I. 29, V.I. 17, V.I.
34, a modulator and a demodulator for performing demodulation and demodulation based on
Each transmission mode is designated by the signal line 20c. The modem 8 receives the signal output on the signal line 20b, outputs the modulated data on the signal line 8a, receives the received signal output on the signal line 6a, and outputs the demodulated data on the signal line 8a.
b.

The circuit 10 for transmitting the ANSam signal transmits the ANSam signal to the signal line 10a when the signal of the signal level "1" is output to the signal line 20d, and outputs the signal of the level "0" to the signal line 20d. When a signal is being output, no signal is output to the signal line 10a.

The adder circuit 12 receives the information on the signal line 8a, the information on the signal line 10a and the information on the signal line 22a, and outputs the result of the addition to the signal line 12a.

The read circuit 14 transmits read data to the signal line 1
4a.

The recording circuit 16 sequentially records information output to the signal line 20e line by line.

The memory circuit 18 stores raw information or encoded information of read data, and stores received information or decoded information.

When a calling command pulse is generated on the signal line 20f, the calling circuit 22 inputs the telephone number information output on the signal line 20g and outputs a DTMF selection signal on the signal line 22a.

The operation unit 24 includes a one-touch dial, a speed dial, a numeric keypad, a * / # key, a start key, a set key, a stop key, and other function keys, and pressed key information is output to a signal line 24a. You.

The double-sided document reading selection button 26 is a button that is pressed when selecting reading of a double-sided document. When the button 26 is pressed, a pressing pulse is generated on the signal line 26a.

The double-sided original reading display circuit 28 is connected to the signal line 2
When a clear pulse is generated at 0h, no display is made on the double-sided original reading display circuit 28, and thereafter, every time a press pulse is generated on the signal line 26a, "display" → "not display" → "display" is repeated. When displaying on the display circuit 28, a signal of signal level "1" is output to the signal line 28a,
When the signal is not displayed on the display circuit 28, the signal of the signal level "0" is output to the signal line 28a.

The display circuit 30 inputs and outputs information output to the signal line 20i.

In a facsimile apparatus capable of reading and transmitting a double-sided document, the control circuit 20 reads, encodes, and stores information on the front side of the facsimile apparatus, and then reads, encodes, and stores the information on the back side. The information on the front side is transmitted alternately from the first page, and the information on the back side is transmitted alternately from the last page.The available memory capacity at the start of reading the front side is estimated. When this happens, the back side of the document that has been read is read, encoded, stored in memory, and after reading is completed, a call is made to the intended destination, and facsimile communication is performed on the front and back sides in the page order, while the remaining documents are read. Read the surface,
Encode and store in memory, then read the back side of the remaining document, encode and store in memory, and send the remaining document in front and back pages in order, but interrupt reading of the front side document And the control when the reading of the original on the front side is not interrupted is changed.

Here, a method of checking the number of front and back sides when the reading of the front side document is interrupted, and a comparison between the number of front sides and the number of back side when the reading of the front side document is not interrupted. Change the check method.

More specifically, if the number of the front side and the number of the back side when reading the original on the front side are the same, the process proceeds to the transmission operation, and when reading the original on the front side is not interrupted. If the number of the front side and the number of the back side match, or if the number of the back side is one less than the number of the front side, the operation shifts to the transmission operation. Here, as a result of the comparison between the number of the front side and the number of the back side, when it is not possible to shift to the transmission operation, a message to that effect is displayed, and a message for requesting to read the original again is displayed. Further, assuming that the reading of the front side document has not been interrupted, the case where the reading of the front side document has never been interrupted by one transmission of the double-sided original, and at least one or more times by the transmission of the double-sided original once Consider a case in which reading of the original on the front side is interrupted once.

FIGS. 2 to 9 are flowcharts showing the control operation of the control circuit 20 in the facsimile machine FS1.

In step S2, the display circuit 3 is connected via the signal line 20i.
Nothing is displayed at 0.

In S4, a clear pulse is generated on the signal line 20h, and the double-sided document reading circuit 28 is not displayed.

In S6, a signal of signal level "0" is output to the signal line 20a, and the CML is turned off.

In S8, a signal of signal level "0" is output to the signal line 20d, and the ANSam signal is not transmitted.

In S10, the information of the signal lines 24a and 28a is input, and it is determined whether or not the transmission of the double-sided reading is selected. When the transmission of the double-sided reading is selected, the process proceeds to S14.
If transmission of double-sided reading has not been selected, the process proceeds to S12,
Perform other processing.

In S14, the available memory capacity is estimated, for example, AMbyte.

At S16, a message "Please set the front side of the double-sided document and press the start key" is displayed on the display circuit 30 via the signal line 20i.

In S18, information on the signal line 24a is input, and it is determined whether or not the start key has been pressed. When the start key has been pressed, the flow proceeds to S20.

At S20, the counter PAGECTA for counting the number of pages on the front side is cleared.

In S22, the information on the surface is read, encoded, and stored in the memory.

In S24, it is determined whether or not reading of one page has been completed.
In step S22, the value of the counter PAGECT is incremented by one, and if reading of one page has not been completed, the process proceeds to step S22.
Proceed to.

In S28, it is determined whether or not the reading of the front side document has been completed. If the reading of the front side document has been completed, the process proceeds to S30, and if the reading of the front side document has not been completed, the process proceeds to S60.

In S30, a message "Please set the back side of the double-sided document and press the start key" is displayed on the display circuit 30 via the signal line 20i.

At S32, information on the signal line 24a is input, and it is determined whether or not the start key has been pressed. When reading of the front side document has been pressed, the process proceeds to S34, at which a counter PAGETB for counting the number of pages on the back side is determined. Clear

At S36, the information on the back side is read, encoded, and stored in the memory.

In S38, it is determined whether or not reading of one page is completed. When reading of one page is completed, S4 is executed.
If the reading of one page has not been completed, the process proceeds to step S36.
Proceed to.

In step S40, the value of the counter PAGETB is incremented by one.

In S42, it is determined whether the reading of the back side document has been completed. If the reading of the back side document has been completed, the process proceeds to S44, and if the reading of the back side document has not been completed, the process proceeds to S36.

At S44 and S46, the page counter PA
It is determined whether GECTA is the same as PAGETB or greater by one, and the process proceeds to S48 if the response is affirmative, and proceeds to S58 if the response is negative.

Here, when the reading of the front side is not interrupted, it is conceivable that the user does not set this document because the back side of the last page is blank and it is normal even if the number of the back side is one less than the number of the front side. Judge.

In S48, a signal of signal level "1" is output to the signal line 20a, and the CML is turned on.

Step S50 indicates that a call is made to the designated destination using the calling circuit 22.

S52 represents a pre-procedure.

Step S54 represents transmission of an image signal. Here, the front side of the two-sided original is transmitted from the first page, and the back side of the two-sided original is transmitted from the last page, and the front side and the back side are alternately transmitted.

S56 represents a post-procedure.

In step S58, the display circuit 30 sends the message "Do not read the front and back sides again because there is a possibility that double-sided originals have been fed on the front or back side of the double-sided document" via the signal line 20i.
Is displayed. Here, this display is erased by any key operation.

In S60, the available memory capacity is
It is determined whether or not (A / 2) + α or less. If the response is a positive response, the process proceeds to S62, and if the response is a negative response, the process proceeds to S22.

In S62, a message "Please set the back side of the document which has been read and press the start key" is displayed on the display circuit 30 via the signal line 20i.

In step S64, information on the signal line 24a is input, and it is determined whether or not the start key has been pressed. If the start key has been pressed, the flow advances to step S66 to proceed to the counter PAG.
Clear ECTB.

In S68, the information on the back side is read, encoded, and stored in the memory.

In S70, it is determined whether or not reading of one page has been completed. If reading of one page has not been completed, the process proceeds to S68, and if reading of one page has been completed, S72.
Then, the value of the counter PAGETB is incremented by one.

In S74, it is determined whether the reading of the original on the back side has been completed. If the reading has been completed, the flow proceeds to S76, and if not, the flow proceeds to S68.

In S76, it is determined whether or not the values of the counters PAGEECTA and PAGETB match, and if they match, the process proceeds to S78, and if they do not match, S58.
Proceed to.

In S78, a signal of signal level "1" is output to the signal line 20a, and the CML is turned on.

Step S80 indicates that a call is made to the designated destination using the calling circuit 22.

Step S82 represents a pre-procedure.

In S84, a message "Please set the front side of the remaining double-sided document and press the start key" is displayed on the display circuit 30 via the signal line 20i.

At S86, the counter PAGECTA is cleared.

Step S88 represents transmission of an image signal. Here, the front side of the double-sided document read earlier starts from the first page.
The back side of the double-sided document read earlier is transmitted alternately from the last page to the front side and back side.

In S90, information on the signal line 24a is input, and it is determined whether or not the start key has been pressed at least once. When the start key is pressed, the flow advances to S92, and
If the start key has not been pressed, the process proceeds to S68.

In S92, the front side of the remaining document is read,
Encode and store in memory.

In S94, it is determined whether or not reading of one page is completed. When reading of one page is completed, S9 is performed.
In step S88, if the value of the counter PAGECT is incremented by one, and reading of one page has not been completed.
Proceed to.

In S98, it is determined whether or not the reading of the front side of the remaining document is completed. When the reading of the front side is completed, the process proceeds to S100, where the value of the counter PAGETB is cleared, and when the reading of the front side is not completed, S88. Proceed to.

In S102, a message "Please set the back side of the remaining double-sided document read so far and press the start key" is displayed on the display circuit 30 via the signal line 20i.

Step S104 represents transmission of an image signal.
Here, the front side of the two-sided document read earlier starts from the first page, and the back side of the two-sided document read earlier starts from the last page.
It is sent alternately on the front and back sides.

In S106, the information on the signal line 24a is input, and it is determined whether or not the start key has been pressed at least once. The process proceeds to S104 if the start key has not been pressed.

In S110, it is determined whether or not reading of one page has been completed.
Proceeding to 112, the value of the counter PAGETB is incremented by one, and if reading of one page has not been completed, S is reached.
Proceed to 104.

In S114, it is determined whether or not the reading of the back side of the remaining document has been completed. If the reading of the back side has been completed, the process proceeds to S116. If the reading of the back side has not been completed, the process proceeds to S116.
Proceed to 104.

At S116 and S118, the counter PAG
If the value of ECTA is equal to the counter PAGEECTB,
Or it is determined whether there is one more, and if the answer is affirmative, S12
The process proceeds to S120, and if the answer is negative, the process proceeds to S120.

In step S120, the display circuit 30 informs the display circuit 30 via the signal line 20i that "there is a possibility that the front side of the remaining double-sided document has been double-fed on the back side. indicate. This display is turned off by any key operation.

In step S122, information on the signal line 24a is input, and it is determined whether any key is pressed. If the key is pressed, the flow advances to step S84.

S124 represents transmission of an image signal.
Here, the front side of the previously read double-sided original is transmitted from the first page, and the back side of the previously read double-sided original is transmitted from the last page, alternately, the front side and the back side. When the transmission of the previously read two-sided original is completed, the remaining two-sided originals are alternately transmitted from the first page, from the last page, from the last page, to the front and back sides.

Step S126 represents a post-procedure.

Next, a facsimile machine FS2 according to a second embodiment of the present invention will be described.

The facsimile apparatus FS2 basically has
This is the same as the facsimile apparatus FS1, and is different from the facsimile apparatus FS1 in that a control circuit 120 is used instead of the control circuit 20. The facsimile machine FS2 is basically a facsimile machine FS1
Therefore, illustration of the facsimile apparatus FS2 is omitted.

In the facsimile apparatus having means for reading a two-sided original, when reading of the two-sided original is selected, the control circuit 120 first reads the front side of the two-sided original, encodes it, stores it in a memory, and then stores the two-sided original in a memory. The back side is read, encoded, and stored in memory, and the front side is sent from the first page, the back side is sent from the last page to the front side, then back side (that is, the two-sided document is front side and back side in page order), and can be used at the start of double side reading The change in the timing of transition from reading of the front surface to reading of the back surface is detected by detecting a large memory capacity and a change in usable memory capacity.

The control circuit 120 stores the available memory capacity at the start of double-sided reading, for example.
The front side is read, encoded, and stored in the memory.Receive operation is selected on the way, and when there is no more recording paper, the operation shifts to memory reception. The timing for interrupting the reading and shifting to reading the back side of the read double-sided document is determined.

More specifically, the control circuit 120 stores the available memory capacity at the start of double-sided reading,
Assume that the stored memory capacity is AMbyte,
After that, there is a means for measuring the time from the start of reading of the surface to the present, and the measurement result is set to tA seconds, the surface is read, encoded, stored in the memory, and the receiving operation is selected on the way, When the recording paper runs out, the process shifts to the memory reception, and means for measuring the time from the start of the memory reception to the present time is provided. The measurement result is set to tB seconds, and the available memory capacity by the memory reception is determined. It has a means for measuring the amount of decrease, and it is assumed that the measurement result is BMbyte. If memory reception is executed while reading the front side of a double-sided document, the available memory capacity becomes (AB-tA / tB). If the value is equal to or less than) / 2 + α, a transition to reading on the back side is displayed, and the processing shifts to reading on the back side. Here, it is displayed that the memory reception is executed while the front side of the two-sided document is being read, and when the available memory capacity becomes equal to or less than (A−B) / 2 + α when the memory reception is completed, a shift to the back side reading is displayed.
Shift to reading of the back side.

FIGS. 10 to 16 are flowcharts showing the control operation of the control circuit 120.

In step S202, nothing is displayed on the display circuit 30 via the signal line 20i.

In S204, a clear pulse is generated on the signal line 20h, and the double-sided reading display circuit 28 is not displayed.

At S206, a signal of signal level "0" is output to signal line 20a, and CML is turned off.

In S208, a signal of signal level "0" is output to the signal line 20d, and the ANSam signal is not transmitted.

In S210, information on the signal line 28a is input, and it is determined whether transmission of double-sided reading is selected or not.
If selected, the process proceeds to S220, and if not selected, S2
Proceed to 12.

At S212, it is determined whether or not the data of the memory proxy reception is stored in the memory. The process proceeds to S214 with an affirmative response, proceeds to S218 with a negative response, and performs other processing.

In S214, it is determined whether or not there is a recording sheet. If there is a recording sheet, the process proceeds to S216, the information received by proxy is recorded in the memory circuit, and if there is no recording sheet, the process proceeds to S218.

In S220, a message "Please set the surface and press the start key" is displayed on the display circuit 30 via the signal line 20i.

In step S222, information on the signal line 24a is input, and it is determined whether or not the start key has been pressed. When the start key has been pressed, the flow advances to step S224 to start the timer tA. This timer tA measures the elapsed time from the start of reading the surface.

In step S226, the memory capacity available for double-sided reading is estimated, for example, AMbyte.

In step S228, the information on the surface is read, encoded, and stored in the memory.

In S230, it is determined whether the reception is being selected or being executed. If the answer is affirmative, the process proceeds to S232, and if the answer is negative, the process proceeds to S242.

In S232, it is determined whether or not there is a recording sheet. If there is, the process proceeds to S234, and if facsimile reception / recording is not executed, the process proceeds to S238.

In S236, it is determined whether or not the communication has been completed. If the communication has been completed, the process proceeds to S228, and if not, the process proceeds to S242.

Step S238 represents facsimile reception / memory reception. Here, the capacity used for the memory reception is estimated and set to BMbyte. The timer tB is started from the start of the memory reception, and the elapsed time from the start of the memory reception is measured.

In S140, it is determined whether or not the communication has been completed. If the communication has been completed, the process proceeds to S228, and if not, the process proceeds to S242.

In S242, it is determined whether or not the reading of the front side has been completed. When the reading has been completed, the process proceeds to S244, and when not completed, the process proceeds to S262.

In S244, a message "Please set the back side and press the start key" is displayed on the display circuit 30 via the signal line 20i.

In S246, the information of the signal line 24a is input, and it is determined whether or not the start key is pressed. When the start key is pressed, the flow advances to S248 to read back side information, encode,
Perform storage to memory.

In S250, it is determined whether or not reading of the back surface has been completed. If not, the process proceeds to S248, and if completed, the process proceeds to S252.

At S252, a signal of signal level "1" is output to signal line 20a, and CML is turned on.

Step S254 indicates that a call is made to the designated destination using the calling circuit 22.

Step S256 represents a pre-procedure.

S258 represents transmission of an image signal.
Here, the front side is transmitted from the first page, and the back side is transmitted from the last page.

S260 represents a post-procedure.

In S262, it is determined whether or not memory reception has been executed during the reading of the front side.
Proceed to 66, and when executed, proceed to S264.

In S264, it is determined whether or not memory reception is still being executed. If the answer is affirmative, the process proceeds to S268. If the answer is negative, the process proceeds to S270.

At S266, it is determined whether or not the available memory capacity is not more than A / 2 + α.
The process proceeds to S228, and if the answer is negative, the process proceeds to S228.

In S268, it is determined whether or not the available memory capacity is equal to or less than (AB · tA / tB) / 2 + α.
The process proceeds to S228, and if the answer is negative, the process proceeds to S228.

In S270, it is determined whether or not the available memory capacity is equal to or less than (AB) / 2 + α.
The process proceeds to S228, and if the answer is negative, the process proceeds to S228.

Step S272 indicates that only the page currently being read is read, encoded, and stored in the memory.

In step S274, the display circuit 30 displays "Please set the currently read document on the back side and press the start key" on the display circuit 30 via the signal line 20i.

In step S276, information on the signal line 24a is input, and it is determined whether or not the start key has been pressed. If the key has been pressed, the flow advances to step S278 to read and encode the back side of the document that has just been read and store it in the memory. Store.

In S280, it is determined whether or not reading of the set document has been completed. If the reading has been completed, the flow proceeds to S282, and if not, the flow proceeds to S278.

At S282, a signal of signal level "1" is output to signal line 20a, and CML is turned on.

Step S284 indicates that the calling circuit 22 is used to make a call to the designated destination.

In S286, a message "Please read the front side of the document which has not been read" is displayed on the display circuit 30 via the signal line 20i.

Step S288 represents a pre-procedure.

S290 represents transmission of an image signal.
Here, the first read original is transmitted alternately from the first page on the front side and from the last page on the back side.

In step S292, information on the signal line 24a is input, and it is determined whether the start key has been pressed at least once. The data is encoded and stored in the memory, and if the response is a negative response, the process proceeds to S296.

In S296, it is determined whether or not the reading of the front surface has been completed. If the reading has been completed, the flow proceeds to S298, and if not, the flow proceeds to S290.

In S298, the display circuit 30 displays "Please read the back side of the document that has been read now" via the signal line 20i.

S300 represents transmission of an image signal.
Here, the first read original is transmitted alternately from the first page on the front side and from the last page on the back side.

In S302, it is determined whether or not the start key has been pressed at least once via the signal line 24a. If the answer is affirmative, the flow advances to S304 to read and encode the next set back original. Is stored in the memory, and if the response is a negative response, the process proceeds to S306.

In S306, it is determined whether or not the transmission of the original read first has been completed. If the transmission has been completed, the flow proceeds to S308, and if not, the flow proceeds to S300.

Step S308 represents transmission of an image signal.
Here, the next read original is alternately transmitted from the first page on the front side and from the last page on the back side.

In S310, it is determined whether or not the transmission of the next read original has been completed. If the transmission has been completed, the flow proceeds to S312, and if not, the flow proceeds to S308.

Step S312 represents a post-procedure.

In S314, a signal of signal level "0" is output to the signal line 20a, and the CML is turned off.

In S316, nothing is displayed on the display circuit 30 via the signal line 20i.

S244, S246, S248, S25
0, S272, S274, S276, S278, S28
Even at 0, facsimile reception / recording or memory reception is executed.

Next, a facsimile apparatus FS3 according to a third embodiment of the present invention will be described.

The facsimile apparatus FS3 basically has
It is the same as the facsimile apparatus FS1, except that the control circuit 220 is used instead of the control circuit 20.
This is different from the facsimile machine FS1. The facsimile machine FS3 is basically the facsimile machine FS1
Therefore, the illustration of the facsimile apparatus FS3 is omitted.

The control circuit 220 is an example of a means for reading, encoding, and storing in a memory in a facsimile apparatus for transmitting a two-sided original, and an example of means for reading, encoding, and storing in a memory. This is an example of means for displaying designation of reading of the front side, an example of means for displaying designation of reading of the back side, and an example of means for selecting reading of a two-sided original.

Further, when the reading of the double-sided original is selected, the control circuit 220 estimates the memory capacity available for reading the double-sided original to be read (the current double-sided original), and according to this memory capacity. , The interruption control of reading the original on the front side is determined.

More specifically, when the reading of a two-sided original is selected, if the memory capacity available for reading the current two-sided original is A, the control circuit 220 first reads the original on the front side. When the encoding and the memory storage are executed and the available memory capacity becomes (A / 2) + α, the reading of the original on the front side is interrupted, and the reading of the back side of the original which has been completed (already) has been completed. Is displayed, and then scans the back side of the original, and when the reading is completed, calls the intended destination, sends the page in the order of the front side, then the back side, and then reads, "The reading has not been completed. Please read the front side of the manuscript ", read the front side of the remaining manuscript, encode it, store it in memory, and then display" Please read the back side of the manuscript that has just read the front side " Scan the back of the original Ri, encoded, and stored in the memory,
The page is transmitted to the other receiver in the order of the front and back pages.

FIGS. 17 to 22 show a facsimile apparatus FS.
3 is a flowchart illustrating a control operation of the control circuit 220 in FIG.

Step S402 indicates that nothing is displayed on the display circuit 30 via the signal line 20i.

In S404, a clear pulse is generated on the signal line 20h, and the double-sided reading display circuit 28 is not displayed.

In S406, a signal of signal level "0" is output to the signal line 20a, and the CML is turned off.

In S408, a signal of signal level "0" is output to the signal line 20d, and the ANSam signal is not transmitted.

In S410, it is determined whether or not transmission has been selected. If it has been selected, the flow proceeds to S414, and if not, the flow proceeds to S412 to perform other processing.

In S414, the information on the signal line 28a is input, and it is determined whether or not double-sided reading is selected. If it is selected, the flow proceeds to S426, and if not, the flow proceeds to S416.

At S416, a signal of signal level "1" is output to signal line 20a, and CML is turned on.

Step S418 indicates that the calling circuit 22 is used to make a call to the designated destination.

Step S420 represents a pre-procedure.

Step S422 represents reading / encoding / transmission of the surface information of the document.

Step S424 represents a post-procedure.

In S426, a message "Please set the front side of the document and press the start key" is displayed on the display circuit 30 via the signal line 20i.

In S428, information on the signal line 24a is input, and it is determined whether or not the start key has been pressed. If the start key has been pressed, the flow advances to S430.

In S430, the available memory capacity is estimated, and it is assumed that the read memory capacity is A.

At step S432, reading / encoding / storage in the memory of the front side of the document is represented.

In S434, it is determined whether or not the reading of the front side of the document has been completed. If the reading has been completed, the flow proceeds to S436, and if not, the flow proceeds to S456.

In S436, a message "Please set the back side of the document and press the start key" is displayed on the display circuit 30 via the signal line 20i.

In S438, information on the signal line 24a is input, and it is determined whether or not the start key has been pressed. If the start key has been pressed, the flow advances to S440.

In step S440, the reading / encoding / storage in the memory of the back side of the document is represented.

In S442, it is determined whether or not the reading of the back surface has been completed. If the reading has been completed, the flow proceeds to S444, and if not, the flow proceeds to S440.

In S444, the display of the display circuit 30 is turned off via the signal line 20i.

At S446, a signal of signal level "1" is output to signal line 20a, and CML is turned on.

At step S448, a call is made to the designated destination using the calling circuit 22.

Step S450 represents a pre-procedure.

S452 represents transmission of an image signal.
Here, the front side is transmitted from the first page, and the back side is transmitted from the last page to the front side and the back side alternately.

Step S454 represents a post-procedure.

At S456, the available memory capacity is
It is determined whether it is (A / 2) + α or less, that is, whether or not about half of the memory has been used since the start of reading (in this case, it is assumed that the fineness of the information on the front surface and the back surface is almost constant). If the response is an affirmative response, the process proceeds to S458, where only the document information (page information) currently being read is read, and if the response is a negative response, the process proceeds to S432.

At S460, the display circuit 30 displays "Please read the back side of the document whose front side has been read so far" via the signal line 20i.

In S462, information on the signal line 24a is input, and it is determined whether or not the start key has been pressed. If the start key has been pressed, the flow advances to S464.

Step S464 represents reading / encoding / storage of the original in the memory.

In S466, it is determined whether or not reading of the back side of the document has been completed. When the reading has been completed, the process proceeds to S468, and when not completed, the process proceeds to S464.

At S468, a signal of signal level "1" is output to signal line 20a, and CML is turned on.

Step S470 indicates that the calling circuit 22 is used to make a call to the designated destination.

Step S472 represents a pre-procedure.

Step S474 represents transmission of an image signal.
Here, the originals that have been read are transmitted alternately from the first page on the front side and from the last page on the front side to the front and back sides.

In S476, a message "Please read the front side of the document which has not been read" is displayed on the display circuit 30 via the signal line 20i.

In step S478, the reading / reading of the front side of the remaining document is performed.
The encoding / storage in the memory is performed in the memory space that has been transmitted by transmitting the image signal. At the same time, the image signal read before is transmitted.

In S480, it is determined whether or not reading of the front side of the document has been completed. When the reading has been completed, the process proceeds to S482, and when not completed, the process proceeds to S478.

At S482, "Please read the back side of the document just read" is displayed on the display circuit 30 via the signal line 20i.

In step S484, the back side of the remaining document is read /
This indicates that the encoding / storage in the memory is performed in the memory space that has been transmitted by transmitting the image signal. At the same time, the previously read image signal is transmitted.

In S486, it is determined whether the transmission of the previously read image signal has been completed or not.
If not, the process proceeds to S484.

Step S488 represents transmission of an image signal.
Here, the originals read as the remaining originals are transmitted alternately from the first page on the front side and from the last page on the front side to the back side.

At S490, it is determined whether or not the transmission of the image signal has been completed. When the transmission has been completed, the process proceeds to S492, where the post-procedure is executed, and when not completed, the process proceeds to S488.

[0186]

According to the first to fourth aspects of the present invention, first, the front side of a double-sided original is read, encoded, and stored in a memory.
Then, in a facsimile machine that reads the back side of a two-sided document, encodes it, stores it in memory, sorts it in memory, and sends it to the front and back sides in page order, when the available memory capacity is small, splits the two-sided document. The front and back sides can be read and coded and sent, and both sides of the original can be sent.Furthermore, when the front side reading is interrupted and the front side reading is not interrupted, the number of front and back side sheets can be properly checked. In addition, if there is a double feed of originals, the fact is displayed to the user, and rereading can be requested, so that it is easy for the user to use.

According to the fifth aspect of the present invention, it is possible to consider a case in which reading of the front side document is never interrupted by one transmission of the double-sided document, and the application range of the present invention is expanded. It has the effect of

According to the sixth aspect of the present invention, when reading of a two-sided original is selected and reading of the front side is performed, another job stored in the memory or a job erased from the memory may occur. , The reading of the back side of the original whose front side has been read can be reliably performed, and the two-sided original can be transmitted on the front side, the back side, and in the page order, which is easy to use.

According to the seventh, eighth, and ninth aspects of the present invention, when reading of a two-sided original is selected and memory reception is performed while the front side of the two-sided original is being read, the memory reception can be used. The memory capacity is predicted to decrease, and the process shifts to reading of the back side of the double-sided document at an appropriate timing, so that the transmission of the double-sided document is ensured.

According to the tenth and eleventh aspects of the present invention, in a facsimile apparatus capable of only one-sided reading, even when the number of double-sided originals is large and the remaining memory capacity for storing read information is small, both sides of the original are reliably read. The transmission can be reliably performed in the page order in the order of the front surface and the back surface.

[Brief description of the drawings]

FIG. 1 shows a facsimile apparatus FS according to an embodiment of the present invention.
FIG.

FIG. 2 is a control circuit 20 in the facsimile apparatus FS1.
5 is a flowchart showing the control operation of the first embodiment.

FIG. 3 is a control circuit 20 in the facsimile apparatus FS1.
5 is a flowchart showing the control operation of the first embodiment.

FIG. 4 is a control circuit 20 in the facsimile apparatus FS1.
5 is a flowchart showing the control operation of the first embodiment.

FIG. 5 is a control circuit 20 in the facsimile apparatus FS1.
5 is a flowchart showing the control operation of the first embodiment.

FIG. 6 shows a control circuit 20 in the facsimile apparatus FS1.
5 is a flowchart showing the control operation of the first embodiment.

FIG. 7 is a control circuit 20 in the facsimile apparatus FS1.
5 is a flowchart showing the control operation of the first embodiment.

FIG. 8 shows a control circuit 20 in the facsimile apparatus FS1.
5 is a flowchart showing the control operation of the first embodiment.

FIG. 9 is a control circuit 20 in the facsimile machine FS1.
5 is a flowchart showing the control operation of the first embodiment.

FIG. 10 is a flowchart showing a control operation of the control circuit 120.

FIG. 11 is a flowchart showing a control operation of the control circuit 120.

FIG. 12 is a flowchart showing a control operation of the control circuit 120.

FIG. 13 is a flowchart showing a control operation of the control circuit 120.

FIG. 14 is a flowchart showing a control operation of the control circuit 120.

FIG. 15 is a flowchart showing a control operation of the control circuit 120.

FIG. 16 is a flowchart showing a control operation of the control circuit 120.

FIG. 17 is a control circuit 2 in the facsimile apparatus FS3.
20 is a flowchart showing a control operation of the control unit 20.

FIG. 18 is a control circuit 2 in the facsimile apparatus FS3.
20 is a flowchart showing a control operation of the control unit 20.

FIG. 19 is a control circuit 2 in the facsimile apparatus FS3.
20 is a flowchart showing a control operation of the control unit 20.

FIG. 20 is a control circuit 2 in the facsimile apparatus FS3.
20 is a flowchart showing a control operation of the control unit 20.

FIG. 21 is a control circuit 2 in the facsimile apparatus FS3.
20 is a flowchart showing a control operation of the control unit 20.

FIG. 22 is a control circuit 2 in the facsimile apparatus FS3.
20 is a flowchart showing a control operation of the control unit 20.

[Explanation of symbols]

 20, 120, 220 ... control circuit. 16 recording circuit, 18 memory circuit, 22 calling circuit, 26 double-sided original reading selection button, 28 double-sided original reading display circuit, 30 display circuit.

Claims (11)

[Claims] 1. A facsimile apparatus capable of reading and transmitting a double-sided document, reading information on a front side, encoding the information, and storing the information in a memory. Then, reading information on the reverse side, encoding the information, and storing the information in a memory.
The information on the front side is transmitted alternately from the first page and the information on the back side from the last page. At the start of reading the front side, the available memory capacity is estimated. When the available memory capacity becomes equal to or less than a predetermined capacity, the reading of the original on the front side is interrupted. After the interruption, information on the back side of the original which has been read is read, encoded, stored in the memory, and after the reading is completed, Make a call to the desired destination, execute facsimile communication on the front and back sides in page order, read the front side information for the remaining documents, encode and store it in memory, and then read the back side information for the remaining documents , Encode and store it in memory. The remaining originals are also transmitted in page order on the front and back sides, and control when reading of the original on the front side is interrupted.
A facsimile apparatus characterized by changing the control when the reading of the original on the front side is not interrupted. 2. The method according to claim 1, wherein the method of checking the number of the front side and the number of the back side when the reading of the front side document is interrupted, and the step of checking the front side when the reading of the front side document is not interrupted. A facsimile apparatus characterized by changing the number of sheets and the method of checking the number of sheets on the back side. 3. The transmission operation according to claim 2, wherein if the number of the front side and the number of the back side at the time of interrupting the reading of the front side document are the same, the process proceeds to a transmission operation, and the reading of the front side document is interrupted. A facsimile machine characterized by shifting to a transmission operation if the number of the front side and the number of the back side when not performed are the same, or if the number of the back side is one less than the number of the front side. 4. A method according to claim 3, wherein when the number of front and back sides is compared, when it is not possible to shift to the transmission operation, a message to that effect is displayed, and a message requesting to read the original again is displayed. Facsimile machine characterized by the above-mentioned. 5. In at least one of the first to fourth aspects, when reading of the front side document is not interrupted, reading of the front side document is interrupted once by transmission of the double-sided original. A facsimile machine, wherein the reading of the front side document is interrupted at least once in one transmission of the two-sided document. 6. A facsimile apparatus having means for reading a double-sided original, wherein when reading a double-sided original, when selected, first reads the front side of the double-sided original, encodes the data, stores it in a memory, and then reads the reverse side of the double-sided original. , Coded and stored in the memory.The front side is sent from the first page, the back side is sent from the last page, and then the front side and back side. A facsimile apparatus which changes the timing of shifting from front side reading to back side reading. 7. The method according to claim 6, wherein a usable memory capacity at the time of starting double-sided reading is stored, and then reading, encoding, and storing in the memory of the front side are performed. When the paper runs out, the process proceeds to the memory reception, the reading of the front surface is interrupted in consideration of the reduction of the available memory capacity due to the memory reception, and the timing of the transition to the reading of the back surface of the read double-sided document is determined. Facsimile machine characterized by the above-mentioned. 8. The method according to claim 6, wherein a usable memory capacity at the start of double-sided reading is stored, and the stored memory capacity is AMbyte. Has a means for measuring the time to tA second, the measurement result is tA seconds, the surface is read, encoded,
When the receiving operation is selected in the middle of the recording operation and the recording paper runs out, the process shifts to the memory receiving operation, and a means for measuring the time from the start of the memory receiving operation to the present is provided. Seconds, means for measuring the amount of decrease in usable memory capacity due to the memory reception is provided, and the measurement result is set to BMbyte. When the memory capacity becomes (AB−tA / tB) / 2 + α or less, it indicates that the process shifts to reading of the back surface,
A facsimile machine characterized by shifting to reading of the back side. 9. The method according to claim 8, wherein the receiving of the memory is performed while the front side of the double-sided document is being read, and the receiving of the memory is completed. When the available memory capacity becomes equal to or less than (AB) / 2 + α, the reading of the back side is performed. To indicate that it will transition to
A facsimile machine characterized by shifting to reading of the back side. 10. A facsimile apparatus for transmitting a two-sided document, means for reading, encoding and storing the front side in a memory; means for reading, encoding and storing the back side in a memory; and displaying designation of front side reading. Means for displaying designation of reading of the back side; means for selecting reading of the two-sided document; and when reading of the two-sided document is selected, the memory capacity available for reading the two-sided document to be transmitted from now on. A facsimile apparatus comprising: estimating means for estimating; and reading interruption position determining means for determining an interruption position for reading a front side document in accordance with the estimated memory capacity. 11. A memory according to claim 10, wherein when the reading of the two-sided document is selected, the memory capacity available for reading the two-sided document to be transmitted is A.
, First, the original on the front side is read, encoded, stored in the memory, and when the available memory capacity becomes (A / 2) + α, the reading of the original on the front side is interrupted, and “the reading of the front side has been completed until now. Please read the back side of the original that has been scanned. "And continue scanning the back side of the original. When this reading is completed, call the intended destination, send the page in the order of the front side, then the back side, and then" End reading " Read the front side of the original that has not been read ", read the front side of the remaining original, encode it, store it in memory, and then display" Please read the back side of the original that you just read. " A facsimile apparatus which reads the back side of the remaining document, encodes it, stores it in a memory, and transmits it to the other receiver in the order of pages in the order of front side and back side.